Donald Trump's family is on the verge of having its very own bank. The president's relatives and their business associates have won preliminary approval to start one, riding a wave that doesn't come around often: It's now easier than at any time in almost 20 years to get a national bank charter, thanks to the Trump administration's deregulation push. [Fetched body truncated at Bloomberg paywall: 'Subscribe now for unlimited access to Bloomberg.com and the Bloomberg app' / reCAPTCHA. No further article paragraphs retrievable.]